Medical Definition of boutonneuse fever
Note: Boutonneuse fever is caused by a rickettsial bacteria (Rickettsia conorii) transmitted by the brown dog tick. A button-like ulcer known as a tache noire develops at the site of the tick bite. Boutonneuse fever is known regionally by other names such as Mediterranean spotted fever and Marseilles fever in southern Europe, tick-bite fever in Africa, and Indian tick typhus in India.
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